package org.broadinstitute.sting.utils.analysis;

import java.util.HashMap;

/*
 * Copyright (c) 2010 The Broad Institute
 *
 * Permission is hereby granted, free of charge, to any person
 * obtaining a copy of this software and associated documentation
 * files (the "Software"), to deal in the Software without
 * restriction, including without limitation the rights to use,
 * copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following
 * conditions:
 *
 * The above copyright notice and this permission notice shall be
 * included in all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES
 * OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
 * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT
 * HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
 * WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR
 * OTHER DEALINGS IN THE SOFTWARE.
 */

/**
 * @author chartl
 * @since June 28, 2010
 */

public class AminoAcidTable {
    public HashMap<String,AminoAcid> tableByCodon = new HashMap<String,AminoAcid>(21);
    public HashMap<String,AminoAcid> tableByCode = new HashMap<String,AminoAcid>(21);
    public AminoAcidTable() {
        for ( AminoAcid acid : AminoAcid.values() ) {
            tableByCode.put(acid.getCode(),acid);
            for ( String codon : acid.codons ) {
                tableByCodon.put(codon,acid);
            }
        }
    }

    // todo -- these functions are for the genomic annotator and are named too generally -- they are
    // todo -- actually accessors by codon; thus should be more specific.
    public AminoAcid getEukaryoticAA(String codon) {
        return tableByCodon.get(codon.toUpperCase());
    }

    public AminoAcid getMitochondrialAA(String codon, boolean isFirst) {
        String upperCodon = codon.toUpperCase();
        if ( isFirst && upperCodon.equals("ATT") || upperCodon.equals("ATA") ) {
            return AminoAcid.Methionine;
        } else if ( upperCodon.equals("AGA") || upperCodon.equals("AGG") ) {
            return AminoAcid.Stop_codon;
        } else if ( upperCodon.equals("TGA") ) {
            return AminoAcid.Tryptophan;
        } else {
            return tableByCodon.get(upperCodon);
        }
    }

    public AminoAcid getAminoAcidByCode(String code) {
        return tableByCode.get(code);
    }
}